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3D quantitative evaluation of atherosclerotic plaque based on rotational angiography
1Division of Interventional Neuroradiology, David Geffen School of Medicine at UCLA, Los Angeles, California, USA. aichi@ucla.edu
Insights
A new method using rotational angiography (RA) accurately determines 3D atherosclerotic plaque volume. This technique shows feasibility in initial patient cases and phantom validation for improved cardiovascular disease assessment.
Area of Science:
- Cardiovascular Imaging
- Medical Technology
- Biomedical Engineering
Background:
- Atherosclerosis is a systemic disease linked to cardiovascular diseases and stroke.
- Current technologies for quantifying atherosclerotic plaque volume are limited.
- Accurate plaque volume assessment is crucial for understanding disease progression.
Purpose of the Study:
- To present a novel method for determining 3D atherosclerotic plaque volume.
- To utilize rotational angiography (RA) for plaque volume quantification.
- To address the limitations in current plaque volume evaluation technologies.
Main Methods:
- Utilized 3D rotational angiography (3DRA) images from six patients with atherosclerotic lesions.
- Applied a plaque reconstruction (PR) model developed for 3DRA to analyze vessel geometry.
- Calculated plaque volume and validated the method using computer-generated phantoms with varying stenosis.
- Tested the PR model on clinical cases and computer-generated phantoms.
Main Results:
- The PR model enabled estimation of plaque morphology and quantification of plaque volume in clinical cases.
- Technique validation demonstrated that PR can reconstruct approximately 92% of the plaque on average.
- The method provided satisfactory determination of plaque volume, confirmed by phantom studies.
Conclusions:
- A new, feasible approach for determining 3D plaque volume based on 3DRA has been developed.
- Initial tests in six clinical cases and phantom validation support the method's potential.
- Further validation in a larger clinical series is necessary to establish the technique's ultimate clinical value.
Background And Purpose:
Atherosclerosis is a systemic disease that has been shown to cause various cardiovascular diseases and stroke. However, technologies to evaluate the volume of atherosclerotic plaque are limited. We present a method for determination of 3D plaque volume based on RA.
Materials And Methods:
3DRA images obtained from patients were used to evaluate the plaque. Six patients who were diagnosed with atherosclerotic lesions were included. The PR model developed for 3DRA was applied to analyze the geometry of the vessel and calculate the plaque volume. To validate the present method, we tested computer-generated phantoms with different degrees of stenosis.
Results:
Application of PR to clinical cases allowed the estimation of plaque morphology and quantification of plaque volume. Technique validation showed that on average, PR can rebuild 92% of the plaque and provide satisfactory determination of plaque volume.
Conclusions:
A new approach to obtain plaque volume based on 3DRA is presented. The initial tests in 6 clinical cases and validation with different phantoms showed that this method is feasible. Further validation in a larger clinical series is required to assess the ultimate value of the present technique.
